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冷焰
相关语句
  cold flame
     Realization of Pre-evaporation Combustion of Light Oil through the Use of a Cold Flame Phenomenon
     利用冷焰现象实现轻油的预蒸发燃烧
短句来源
     In this paper, the measurement of the prechamber pressure, flame illumination intensity, injector needle lift and other major parametors for the combustion process in a precombustion chamber type diesel engine results in the accurate data about the physical ignition delay period, cold flame duration, blue flame duration, hot flame duration, illumination delay period, pressure-rise delay period, and temperature-rise delay period in a precombustion chamber type diesel engine.
     本文作者通过对预燃室式柴油机燃烧过程的预燃室压力、火焰光强和针阀升程等主要参数的实际测量,获得了预燃室式柴油机的物理滞燃期、冷焰持续期、兰焰持续期、热焰持续期、发光滞燃期、压升滞燃期和温升滞燃期的精确数据.
短句来源
     This paper introduces the principle of the prevaporation & premix combustion technique. It focus especially on the introduction of this principle,which using the phenomenon of autoignition delay and the phenomenon of cold flame to realize the prevaporation of the light fuel.
     介绍了液体燃料预蒸发燃烧的技术原理,着重介绍了利用轻油燃烧前存在的着人延迟现象和着火前存在的冷焰燃烧现象实现轻油预蒸发的技术原理。
短句来源
     It focus especially on the introduction of this principle which using the phenomenon of cold flame to realize the prevaporation of the liquid fuel.
     重点介绍利用液体燃料着火前存在的冷焰燃烧现象实现燃料预蒸发的技术原理。
短句来源
     Highlighted is the realization of the technical principle of fuel pre evaporation by utilizing the cold flame combustion phenomenon normally present prior to the ignition of liquid fuel.
     重点介绍了利用液体燃料着火前存在的冷焰燃烧现象实现燃料预蒸发的技术原理。
短句来源
  cool flame
     Under these conditions, no cool flame and negative temperature coefficient phenomenon was observed.
     在这样的条件下,异丁烯的氧化溲有冷焰与负温度系数现象。
短句来源
     It seems that the latter reaction has a decisive effect on cool flame reaction. In the high temperature oxidation region, the branching proceeds mainly in the form of molecular reaction:RCHO+O_2→2R. The kinetic characteristics are different for different types of branching mechanism, and the kinetic derivations are supported by the experimental results.
     用动力学方法研究支化反应的方式表明:在冷焰和低温氧化区支化是按分子反应和链的正相互作用方式发生,可能的反应方式为: RCHO+O_2→2R·RCHO+RO_2·→3R·在高温氧化区,支化则主要按前一反应方式发生。
短句来源
     Within the explosive limits, the explosive morphology can be further compartmentalized into four kinds of explosive morphology (cool flame, deflagration, detonation and transformation of deflagration to detonation) and five explosive zones (the lower cool flame zone, the upper and lower deflagration zone, the detonation zone and the lower deflagration transformed into detonation zone), and this compartmentalization proposed is propitious for the further study of the relevant branched-chain explosion systems and for the development of the branched-chain explosion theory.
     在爆炸极限内,可以进一步区划为冷焰、爆燃、爆轰与爆燃向爆轰转化四种爆炸形态,以及下冷焰区、上、下限爆燃区、爆轰区和爆燃向爆轰转化区五个爆炸区域,有利于进一步研究相关的多元支链爆炸体系。
短句来源
     The simulation results reveal that the cool flame reaction occurrs when the OH concentration is about 10~(-6). The effect of methanol addition on HCCI combustion was mainly attributed to the changing of nC7ket and OH concentrations.
     数值模拟发现,OH摩尔分数在10-6数量级才触发冷焰反应,甲醇浓度的变化引起低温阶段nC7ket和OH最大浓度及时刻的改变,从而影响低温和高温反应.
短句来源
  “冷焰”译为未确定词的双语例句
     Study on Analytical Method for Iron and Calcium in High Purity Rare Earth Oxides by ICP MS
     冷焰ICP-MS法测定高纯稀土氧化物中铁和钙的研究
短句来源
     For all fuels at different engine working conditions, the first ignition phase of HCCI combustion was observed at 850 K, ended at 950 K, and the hot ignition occurred at 1 125 K.
     各种燃料的HCCI燃烧冷焰反应发生在850K左右,到950K结束,进入负温度系数区(NTC),在1125K左右突破NTC区而发生热着火.
短句来源
     The results showed the reduced model could simulate the cool-flame and hot-flame combustion process of n-heptane in HCCI engines, and that the reduced model generally agreed well with those of the detailed model(544 species and 2446 reactions) within the range of equivalence ratios from 0.2-1.2, temperature from 300-3000 K.
     计算表明,新模型能够在当量比0.2-1.2,温度从300-3000 K的范围内精确模拟正庚烷HCCI燃烧时冷焰和热焰反应过程,与详细模型(544种组分和2446个反应)计算结果吻合较好。
短句来源
     Determination of eighteen trace metals in 2-propanol of high purity of electronic grade by ICP-MS with technology of standard state and plasma screen was described. Matrix effects were compensated by adding indium as the internal standard.
     用电感耦合等离子体 质谱 (ICP MS)的标准状态 (STD)和冷焰状态 (PS)测定电子级高纯异丙醇中的 18个痕量金属杂质 ,用铟作内标可补偿基体效应。
短句来源
     This reduced model could simulate the cool-flame and hot-flame combustion process of n-heptane as well as NO_x formation in HCCI engines,and the calculation results also agreed well with those from the detailed model.
     此外,还采用了Golovitchev简化模型中NOx生成子模型。 新模型能够模拟正庚烷HCCI燃烧的冷焰和热焰反应以及NOx生成的整个过程,与详细模型计算结果吻合较好。
短句来源
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  cold flame
An integrity in sharing -James Reeves: 'The Cold Flame'
      
Detection of high concentrations of radicals in the zone of the cold flame in the reaction of the oxidation of propane
      
Effect of mixture composition on the region of cold flame existence in propylene oxidation
      
The calculations predict that the main source of heat release in the cold flame zone at p ≥ 3 atm is dinitraminic acid incoming through the channel of dissociative evaporation ADNliq → NH3 + HN(NO2)2 from the burning surface.
      
  cool flame
The structure of cool flame fronts of pentane, iso-pentane and their mixture
      
Particular attention has been given to the low temperature region ahead of the hot region of the flame and the cool flame chemistry occurring there.
      
A unique experimental facility has been used to provide access to this cool flame region.
      
The major cyclic ethers formed in the cool flame oxidation of reference fuels (normal heptane, isooctane, and normal decane) have been identified by gas chromatography-mass spectrometry.
      
The concentrations of peroxy radicals in cool flame is approximately 15 times higher than in the preflame region at the same temperature (330°C).
      
更多          


The kinetics of gas phase oxidation of isobutene was studied in the range of 295—485℃ and 96—387 mm Hg. Under these conditions, no cool flame and negative temperature coefficient phenomenon was observed. The maximum reaction rate which is expressed in terms of the rate of pressure change follows the relationship:

在295—485℃,96—387毫米汞柱范围内研究了异丁烯的气相氧化。在这样的条件下,异丁烯的氧化溲有冷焰与负温度系数现象。在试验条件范围内,以压升量表示的最大反应速度遵守: 分析了异丁烯氧化的产品,除深度氧化产品H_2O,CO,CO_2外,产品中有多量的丙酮、甲醛(分别达原料异丁烯压力的50%和60%)和环氧化合物。产品中还有甲醇、甲烷、丙烯等。亦有乙醛、丙醛和异丁烯醛生成,但其总量不超过3毫米汞柱(5%)。根据所得结果,讨论了反应的机理。

The branching mechanism of gas phase oxidation of lower hydrocarbons has been discussed. It is believed that aldehydes are the branching agents for gas phase oxidation and the higher aldehydes are the active species responsible for cool flame reaction. In the gas phase oxidation of lower hydrocarbons with aldehyde added, there are different types of branching mechanism which are determined by the regions of different reaction temperature. In the lower temperature and cool flame region, the branching reactions...

The branching mechanism of gas phase oxidation of lower hydrocarbons has been discussed. It is believed that aldehydes are the branching agents for gas phase oxidation and the higher aldehydes are the active species responsible for cool flame reaction. In the gas phase oxidation of lower hydrocarbons with aldehyde added, there are different types of branching mechanism which are determined by the regions of different reaction temperature. In the lower temperature and cool flame region, the branching reactions proceed as molecular reactions and positive mutual action of chain carriers. The reaction scheme may be probably as follows:RCHO+O_2→2R.RCHO+RO_2.→3R. It seems that the latter reaction has a decisive effect on cool flame reaction. In the high temperature oxidation region, the branching proceeds mainly in the form of molecular reaction:RCHO+O_2→2R.The kinetic characteristics are different for different types of branching mechanism, and the kinetic derivations are supported by the experimental results.

本文用宏观动力学方法详细讨论了低级烃气相氧化的支化机理,其中包括起作用的物质(支化剂)的判断和支化反应方式的判断。肯定了醛对烃氧化反应具有加速作用,也肯定了醛是气相氧化的支化剂。用动力学方法研究支化反应的方式表明:在冷焰和低温氧化区支化是按分子反应和链的正相互作用方式发生,可能的反应方式为: RCHO+O_2→2R·RCHO+RO_2·→3R·在高温氧化区,支化则主要按前一反应方式发生。

In this paper, the measurement of the prechamber pressure, flame illumination intensity, injector needle lift and other major parametors for the combustion process in a precombustion chamber type diesel engine results in the accurate data about the physical ignition delay period, cold flame duration, blue flame duration, hot flame duration, illumination delay period, pressure-rise delay period, and temperature-rise delay period in a precombustion chamber type diesel engine. Based on these results, the investigation...

In this paper, the measurement of the prechamber pressure, flame illumination intensity, injector needle lift and other major parametors for the combustion process in a precombustion chamber type diesel engine results in the accurate data about the physical ignition delay period, cold flame duration, blue flame duration, hot flame duration, illumination delay period, pressure-rise delay period, and temperature-rise delay period in a precombustion chamber type diesel engine. Based on these results, the investigation was made of microcosmic variations of the combustion process in the precombusion chamber. In addition, the difference of the load characteristics of the three kinds of ignition delay poriods is analysed. All these lead to some new knowledge of the whole matter.

本文作者通过对预燃室式柴油机燃烧过程的预燃室压力、火焰光强和针阀升程等主要参数的实际测量,获得了预燃室式柴油机的物理滞燃期、冷焰持续期、兰焰持续期、热焰持续期、发光滞燃期、压升滞燃期和温升滞燃期的精确数据.根据测量结果,对预燃室内的燃烧过程的微观变化进行了探讨.同时,对三种滞燃期的负荷特性进行了对比分析,从而获得一些全新的认识.

 
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